New York Natural Heritage Program
Possum-haw
Viburnum nudum var. nudum
Dicots
Viburnum nudum leaves Stephen M. Young
Family: Honeysuckle Family (Caprifoliaceae)

State Protection: Endangered
listed species are those with: 1) 5 or fewer extant sites, or 2) fewer than 1,000 individuals, or 3) restricted to fewer than 4 U.S.G.S. 7 minute topographical maps, or 4) species listed as endangered by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: This plant is endangered/critically imperiled in New York because of extreme rarity (typically 5 or fewer populations or very few remaining individuals) or is extremely vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G5T5
A Global Rarity Rank of G5T5 means: Secure globally - Both the species as a whole and the subspecies/variety are common in the world; widespread and abundant (but may be rare in some parts of its range).


Did you know?
This beautiful shrub was introduced into cultivation as early as 1752 and has been grown in temperatures as low as -25 degrees F (Dirr 1975) even though in New York it is mostly native to southeastern New York, Staten Island, and Long Island where it rarely, if ever, gets that cold.

State Ranking Justification [-]
There are four existing populations but only one of them has more than 100 plants. The other ones have less than 10 each. There are two historical occurrences which need more checking but are probably gone.

Short-term Trends [-]

Long-term Trends [-]